Complement Component C4c
Marker1 mL serum
Starting at
$44
Up to $119
Save up to $75
Walk-In Lab
Lowest PriceOnlineComplement C4 Blood Test
The Complement C4 Blood Test monitors and diagnoses autoimmune disorders by measuring complement C4 levels in the blood.
Updated 7/22/2025
$44
Order TestDirectLabs
OnlineComplement Component C4c
The most important and abundant protein in the complement system
Updated 7/22/2025
$72
Order TestAccesa Labs
OnlineC4 Blood Test
The C4 blood test measures the C4 complement blood level.
Updated 7/24/2025
$119
Order Test